Considering that electric energy is a strategic and vital energy in daily life, the need for the stability of this energy in crises is a necessity. The most important solution to deal with crises caused by natural disasters is to put passive defense in the operation of electricity distribution networks. By using analytical techniques, it provides a platform for informed decision making in crisis. In this article, while examining the non-operating defense in the electricity distribution company of Chaharmahal and Bakhtiari province, we will provide a solution to overcome the crisis of heavy snowfall in Koohrang city. By implementing these solutions, we will compare the amount of undistributed energy in medium and weak pressure feeders in the critical months of Koohrang city and check the reliability of the network. تفاصيل المقالة